MacOS Tags - combining Text and existing info from other Tag?

[thetrickster]

I'm currently working to see how I can extract some camera information (ISO, White Balance etc) from the MOV file and add MacOS finder tags to the file

So far I have this working:
exiftool "-MDItemUserTags<ISO"  P1000001.MOV
exiftool "-MDItemUserTags+<WhiteBalance"  P1000001.MOV

This proceeds to add two Finder tags to the file, one being '400' and the other 'Manual' which is great. However ideally I would like to prefix the values with meaning for titles for example 'ATA400' and 'WB-Manual' or something along those lines

Looking online and the documentation I 'think' something like this should work:

exiftool "-MDItemUserTags=ATA <${ISO}" P1000001.MOV
exiftool "-MDItemUserTags+=WB_<${WhiteBalance}" P1000001.MOV

But after a couple of hours I'm lost

Anyone?

[Phil Harvey]

Close.  Try this:

exiftool "-MDItemUserTags<ATA${ISO}" "-MDItemUserTags<WB${WhiteBalance}" P1000001.MOV

- Phil

[thetrickster]

Thanks (very much!) for the reply Phil

I've tried what you've suggested (even just the first part to set the ATA aspect), however and its coming back with:

(Code used)
exiftool "-MDItemUserTags<ATA${ISO}" /Users/Richard/Desktop/P1000001.MOV

Warning: No writable tags set from P1000001.MOV
0 image files updated
1 image files unchanged

[Phil Harvey]

Ah. You're on Mac.  You need to use single quotes instead of double quotes.  (See my signature.)

But you'll also get this message if ISO doesn't exist in the file.  Use exiftool -s FILE to see the available tags.

- Phil

[thetrickster]

Working now

Thank you, epic!